openecu.org

by **ride5000** » Sun Oct 15, 2006 4:39 am

yes jc. unfortunately not all good news i'm afraid.

the ign acc comp doesn't seem to react in quite the way i was hoping. it barely affected WOT timing numbers, but altered idle timing immensely.

here's a sample of what i'm talking about:

Code: Select all: Time rpm tps ign mafv afr load mrp 0 1440 0 14 1.48 13.44 0.5 -9.141 131 1447 0 8 1.48 13.32 0.5 -9.286 291 1429 0 17 1.46 13.44 0.47 -9.431 451 1440 0 14 1.46 13.44 0.47 -9.431 611 1433 0 17 1.44 13.44 0.47 -9.576 772 1438 0 15 1.44 13.44 0.47 -9.576 932 1444 0 20 1.44 13.55 0.44 -9.576 1092 1429 0 18 1.44 13.55 0.44 -9.722 1252 1424 0 17 1.42 13.44 0.44 -9.722 1412 1412 0 18 1.4 13.32 0.41 -9.867 1573 1403 0 25 1.4 13.21 0.41 -9.867 1733 1395 0 25 1.38 13.09 0.41 -9.867 1893 1384 0 26 1.38 13.32 0.41 -10.012 2053 1354 0 33 1.36 13.55 0.41 -10.012 2214 1234 0 57 1.38 13.55 0.44 -9.867 2374 1083 0 57 1.66 14.24 0.56 -9.722 2534 1054 0 41 1.52 14.36 0.72 -7.835 2694 1174 0 -7 1.48 14.36 0.66 -7.835 2855 1206 0 -9 1.54 12.63 0.66 -7.98 3015 1181 0 1 1.56 13.09 0.66 -8.125 3175 1219 0 -8 1.58 13.78 0.69 -7.98 3335 1163 0 15 1.56 13.9 0.69 -7.835 3495 1224 0 -4 1.56 14.13 0.69 -7.835 3656 1209 0 10 1.56 14.13 0.69 -7.835 3816 1225 0 -3 1.56 13.9 0.69 -7.835 3976 1205 0 15 1.64 13.67 0.75 -7.69 4136 1285 0 1 1.62 13.44 0.78 -7.4 4297 1268 0 0 1.62 13.21 0.78 -7.255 4457 1299 0 -10 1.62 13.09 0.78 -7.255 4617 1299 0 -3 1.64 12.98 0.75 -7.4 4777 1332 0 -10 1.62 12.86 0.75 -7.4 4938 1326 0 -4 1.62 12.63 0.75 -7.545 5098 1339 0 -5 1.64 12.86 0.75 -7.545 5258 1304 0 11 1.62 12.86 0.75 -7.545 5418 1307 0 6 1.62 12.75 0.75 -7.545 5578 1294 0 27 1.62 12.75 0.75 -7.545 5739 1219 0 40 1.62 12.75 0.78 -7.4 5899 1107 0 57 1.66 13.21 0.88 -7.11 6059 876 0 57 1.68 13.55 1.06 -5.514 6219 741 0 57 1.68 13.67 1.19 -4.643 6380 500 0 56 1.64 13.44 1.41 -2.902 6540 417 0 55 1.46 13.32 0.91 -2.031 6700 324 0 10 1.04 14.7 0.91 1.306 6860 324 0 10 1.26 14.7 0.91 1.306 7021 114 0 10 0.96 14.7 0.91 0 7181 114 0 10 0.92 14.7 0.91 0 7341 114 0 10 0.86 14.7 0.91 0 7501 0 0 10 0.74 14.7 0.91 0.145 7661 0 0 10 0.72 14.7 0.91 0.145 7822 0 0 10 0.72 14.7 0.91 0.145 7982 0 0 10 0.7 14.7 0.91 0.145 8142 0 0 10 0.7 14.7 0.91 0 8302 0 0 10 0.7 14.7 0.91 0 8463 0 0 10 0.7 14.7 0.91 0

you can see it actually stalled the car.

now, these WERE severe values... something like 2x the oem values. it looks almost as if it takes the delta rpm as a percentage of total rpm, since the offsets were most severe at idle/low rpm. here are some high tps log lines (they are not contiguous--watch the timestamp):

Code: Select all: Time rpm tps ign mafv afr load mrp 73276 3156 61.57 28 2.78 14.7 1.97 -0.29 73446 3432 79.22 28 3 13.21 2.25 0.58 73616 3324 80 27 3 12.86 2.47 1.451 73787 3065 80.39 25 2.96 12.63 2.59 2.612 73957 2596 80.39 24 2.8 12.75 2.63 3.482 74127 2185 80.39 24 2.64 12.63 2.47 3.482 74297 2018 80.39 23 2.5 13.44 2.25 3.047 74468 2310 80.39 25 2.62 14.13 2.22 2.902 74638 2613 80.39 26 2.76 14.13 2.25 2.902 74808 2710 80.39 26 2.88 13.44 2.41 2.902 74978 3006 80.39 26 2.94 13.21 2.56 3.192 75149 3417 79.22 26 3.1 12.63 2.69 3.773 75319 3630 65.88 25 3.28 11.94 3 4.643 75489 3945 59.22 25 3.42 11.48 3.25 6.239 77622 3389 50.98 26 3.1 13.09 2.72 4.063 77792 3548 51.37 25 3.24 12.75 2.91 5.078 77963 3607 51.37 25 3.3 12.17 3.09 5.804 78133 3754 51.37 24 3.42 11.6 3.31 7.11 78303 3856 51.37 23 3.54 11.25 3.56 8.125 78473 4041 51.37 22 3.6 11.25 3.75 9.722 78634 4202 51.37 23 3.68 11.25 3.75 10.302 150467 2039 68.63 21 2.66 19.98 1.81 -0.145 155474 1635 52.16 21 2.28 14.93 1.94 0.58 155644 1653 60 21 2.32 14.81 1.97 0.725 155815 1745 61.18 21 2.38 14.59 2 0.871 155985 1791 61.18 22 2.38 14.81 2 1.016 156155 1872 61.18 22 2.44 14.81 2.03 1.161 156325 1968 61.18 22 2.42 14.81 2.03 1.306 156495 2004 61.18 22 2.48 14.81 2.06 1.451 156666 2103 61.18 23 2.52 14.81 2.09 1.596 156836 2164 61.18 23 2.56 14.7 2.13 1.741 157006 2243 61.18 23 2.56 14.7 2.16 1.886 157176 2321 61.18 23 2.64 14.59 2.19 2.031 157347 2419 61.18 23 2.7 14.59 2.28 2.322 157517 2483 60.39 23 2.72 14.36 2.34 2.757 157687 2613 57.65 23 2.8 14.59 2.41 2.902 157847 2688 54.9 23 2.86 14.7 2.5 3.337 158018 2835 50.59 23 2.92 14.7 2.63 3.627 218094 1966 50.2 23 2.42 15.5 1.94 0.58 218264 2070 50.59 23 2.5 15.62 2 0.725 218435 2325 50.59 23 2.56 15.39 2.06 0.871 218605 2439 50.59 24 2.7 15.27 2.13 1.306 218775 2668 50.59 24 2.76 15.39 2.25 1.741 218945 2994 50.59 24 2.9 15.39 2.44 2.322 249019 2296 82.35 22 2.66 22.85 1.91 0.145 256910 1599 52.16 21 2.3 15.16 1.97 0.435 257080 1669 57.65 21 2.34 14.93 2 0.58 257250 1690 58.82 21 2.34 15.04 2.03 0.725 257421 1748 59.22 21 2.36 15.39 2.03 1.016 257591 1805 59.61 21 2.38 15.5 2.06 1.161 257761 1868 59.61 22 2.4 15.39 2.09 1.306 257931 1882 59.61 22 2.46 15.39 2.09 1.451 258102 1932 59.61 22 2.44 15.39 2.09 1.596 258272 2036 59.61 22 2.52 15.62 2.13 1.741 258442 2069 60 22 2.52 15.5 2.16 1.886 258612 2117 60.78 22 2.54 15.27 2.19 2.176 258783 2180 61.18 23 2.58 15.5 2.19 2.176 258953 2258 60.78 23 2.6 15.27 2.25 2.467 259123 2321 60.39 23 2.66 15.27 2.28 2.612 335443 1778 76.47 23 2.44 14.47 1.72 -0.145 335613 2524 94.12 24 2.62 16.31 1.88 0 335783 3001 100 25 2.8 13.44 2.09 0.58 335954 2988 100 24 2.9 12.4 2.31 1.161 336124 3096 100 24 2.92 12.29 2.47 2.176 336284 3220 100 24 3.06 12.4 2.66 3.047 336454 2616 100 21 2.96 11.94 2.91 4.643 336624 2430 100 23 2.86 11.37 2.53 4.643 336795 2470 100 22 2.78 12.63 2.53 4.788 336965 2718 100 23 2.94 12.52 2.63 4.933 337135 3000 100 23 3.1 12.63 2.81 5.078 337305 3329 100 22 3.26 12.06 3.09 6.094 337476 3687 100 20 3.54 11.6 3.69 7.4 337646 4000 69.41 19 3.74 11.25 4.16 10.592 337816 4627 65.88 17 4.08 11.25 4.75 15.235 337986 4983 65.49 19 4.02 11.25 4.28 14.655 494181 2735 95.69 23 2.82 17.34 2.53 2.902 494351 2834 100 23 2.94 12.17 2.59 3.482 494522 2923 100 23 3.02 11.94 2.75 4.353 494692 3014 100 22 3.12 12.06 2.84 4.933 494862 3113 100 22 3.12 12.06 3.03 5.949 495032 3204 100 21 3.22 11.94 3.25 7.255 495203 3310 100 21 3.34 11.6 3.5 8.125 495373 3454 100 19 3.48 11.48 3.88 10.157 495543 3573 100 18 3.72 11.25 4.41 11.753 495713 3737 100 16 3.88 11.25 5.06 15.525 497145 5346 100 14 4.42 11.25 5.56 21.765 497316 5523 100 14 4.46 11.25 5.5 21.475 497486 5601 100 14 4.48 11.25 5.41 21.184 497656 5774 100 16 4.5 11.25 5.31 20.894 497826 6024 100 17 4.52 11.25 5.19 20.749 497997 6097 100 17 4.52 11.25 5.13 20.169 498167 6378 100 21 4.52 11.25 4.97 19.878 498337 6443 100 21 4.56 11.25 4.88 19.878 498507 6608 100 22 4.54 11.25 4.78 19.733 498678 6726 100 23 4.52 11.25 4.91 19.878 498848 5814 100 18 4.32 25.38 4.72 17.412 499018 5205 100 19 4.14 24.46 4.47 15.525 499188 4723 100 20 4.02 23.89 4.25 14.075 499358 4845 100 13 4.32 14.47 5.69 21.039 499529 4899 100 12 4.34 11.25 5.81 22.49 499699 4804 100 13 4.3 11.25 5.59 22.49 499869 4921 100 13 4.34 11.25 5.53 22.49 500039 5044 100 13 4.34 11.25 5.63 22.49 500210 5085 100 13 4.38 11.25 5.63 22.49 505347 2555 63.14 22 2.6 23.54 1.81 -1.016 506489 4063 75.29 25 3.32 13.21 2.69 2.902 506659 4121 79.22 23 3.5 14.59 3.25 5.078 506829 4176 80 20 3.7 11.37 3.84 9.286 506999 4232 78.43 19 3.86 11.25 4.47 12.478 507170 4323 70.2 18 3.9 11.25 4.44 15.235 507340 4373 54.51 19 3.82 11.25 4.13 14.655 518426 4417 51.37 25 3.28 14.36 2.66 0.871 518596 4472 100 21 3.7 12.75 3.5 6.675 518766 4548 100 19 3.92 11.25 4.34 10.882 518937 4581 100 16 4.12 11.25 5 16.541 519107 4658 100 12 4.28 11.25 5.75 20.459 519277 4804 100 11 4.34 11.25 5.84 22.49 519447 4883 100 13 4.32 11.25 5.66 22.49 547418 2634 50.59 22 2.9 13.78 2.75 5.949 547588 2648 50.59 22 2.9 13.9 2.78 6.239 547758 2648 50.59 21 2.92 13.9 2.81 6.384 547928 2643 50.59 21 2.92 13.78 2.81 6.529 548099 2653 50.59 21 2.94 13.55 2.84 6.82 633531 2767 55.69 24 2.86 16.19 2.41 2.322 633702 2746 86.67 23 2.9 14.13 2.53 3.482 633872 2760 88.24 23 2.92 13.09 2.59 4.353 634042 2767 88.63 23 2.92 12.63 2.66 5.078 634212 2777 88.24 22 2.96 12.4 2.75 5.514 634383 2767 80.78 22 2.94 12.29 2.81 6.239 634553 2779 59.22 22 3 13.32 2.91 6.529 641793 2341 97.65 21 2.76 23.2 1.72 -0.145 673048 3381 51.76 26 3 14.59 2.22 1.306 673218 3437 99.61 25 3.14 14.13 2.78 3.047 673389 3443 100 22 3.26 11.83 3.16 5.514 673559 3474 92.55 20 3.46 11.37 3.59 7.98 723571 735 67.06 19 1.98 16.65 1.88 0 723741 1330 87.06 23 2.32 14.93 1.72 0 723911 2675 100 25 2.64 14.13 1.81 0.145 724082 3454 100 26 2.98 13.78 2.16 0.58 724252 3323 100 25 3.08 12.17 2.56 1.886 724422 2588 100 22 2.82 11.37 2.63 3.627 724592 2019 100 20 2.52 11.37 2.53 3.918 724763 2407 100 23 2.68 11.6 2.31 3.773 724933 2470 100 23 2.72 12.75 2.34 4.063 725103 2799 100 23 2.88 12.98 2.56 4.353 725273 3066 90.2 23 3.08 12.29 2.75 4.933

it is almost as if this particular map is only invoked during "idle" operation. i reverted the values back to oem and the idle quieted right down.

that's all i've got for now.

ken

by **thejean** » Sun Oct 15, 2006 9:01 am

Good work Ken! Do you have any data from when you were at 100% throttle and then completely lifted off the throttle?

by **thejean** » Thu Oct 19, 2006 7:32 pm

Ok, I did a bunch of logging last night and map switching. Too much to put up here. The jist of it was that the ecu uses a set 12 degrees of timing at operating temp during engine decel. After it hits 1250 rpm, or thereabouts, it then goes off and uses the idle timing map. If the engine is cold, decel uses something a little higher... around 16 degrees. I noticed as I continually blipped the throttle that the timing slowly went from 16 to 12 on decel as the car warmed up. I have been trying to find this table in ecuedit and see nothing of the sort. Any suggestions which table this might be?

by **m3n0ch3** » Fri Oct 20, 2006 4:13 am

by what you are saying, the engine simply uses the idle timing map which seems logic to me..

the reason your seeying 16 degrees is there is a timing vs coolant temp map which increases timing until 80C.

If you look at Main idle map (idle) 29CBD on an AF423

when warming up, you'd get a rpm around 1500 qhich would give around 16 degrees you see, slowly going down to 12 when temperature reaches running temp of 80+C

hope this gives a hint.

by **thejean** » Fri Oct 20, 2006 5:49 am

I don't think it uses the idle timing map during decel because the idle timing map is rpm dependent and the ecu uses a set 12 degrees regardless if the rpm is at 4000 or 1500. The only thing I have noticed that seems to change this figure is the coolant temp. Nothing else seems to impact it... load, rpm, MAF, nothing. Well, at least that I have seen. There are two idle coolant temp comp tables that I am going to try changing tonight and see what happens. I'll post back.

by **thejean** » Fri Oct 20, 2006 7:08 am

m3n0ch3 wrote:the reason your seeying 16 degrees is there is a timing vs coolant temp map which increases timing until 80C.

What table is this? I have looked and don't see it. Do you mean 297D6?

by **thejean** » Fri Oct 20, 2006 9:57 pm

Well, after trying 10 different tables, I finally found what I was looking for. Thanks for the help fellas. Cheers, JC

by **swifty** » Sun Oct 22, 2006 6:35 am

so what have you found ?

by **thejean** » Sun Oct 22, 2006 8:44 pm

swifty wrote:so what have you found ?

A table that allows me to go adjust timing on deceleration.

by **ride5000** » Mon Oct 23, 2006 5:18 am

well fess up, man!

i'm still hunting for my idle timing map.

by **thejean** » Mon Oct 23, 2006 7:31 am

ride5000 wrote:i'm still hunting for my idle timing map.

Here's mine:

openecu.org

EcuEdit... deceleration ignition tables

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